RFID Medical Device Verification on High-Throughput Conveyors
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Solution Overview
Problem
Existing techniques for avoiding product mix-ups in high-throughput production lines rely on manual inspection and limited color panels, which are inefficient and prone to errors.
Innovation Solution
A system utilizing a radio-frequency identification (RFID) reader, conveyor, and processor to read identifiers from RFID tags on medical devices, determine if they match a list of expected identifiers, and automatically remove devices that do not match from the production line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual inspection processes are used to avoid product mix-ups, then product accuracy can be maintained, but production efficiency deteriorates due to low throughput
Solution Approach 1:
The patent replaces manual inspection processes with an automated RFID identification system. RFID readers automatically read identifiers from medical devices on the production line, and a controller compares these identifiers against expected identifiers to detect mix-ups. This substitution of mechanical/manual operations with automated electronic systems maintains product accuracy while dramatically increasing production throughput.
Solution Approach 2:
The patent introduces RFID tags as intermediary carriers of product identification information. Instead of direct manual inspection, the system uses RFID tags attached to medical devices, which are then automatically read by RFID readers. This intermediary layer enables automated identification and verification, resolving the contradiction between maintaining accuracy and increasing efficiency.
2Adaptability or versatility
If colored identifiers are used for anti-mix up, then product differentiation is achieved, but the system becomes limited by the available color panel
Solution Approach 1:
The patent changes the identification parameter from visual color codes to electronic RFID identifiers. Instead of being limited by the number of distinguishable colors, the system uses RFID tags that can store and transmit unique electronic identifiers. This parameter change expands the differentiation capability from a limited color palette to potentially unlimited unique electronic codes, eliminating the color panel limitation while maintaining adaptability.
3Productivity
If automated RFID verification is implemented, then production throughput is maximized, but system complexity increases
Solution Approach 1:
The patent designs the RFID verification system with multi-functional components. The RFID readers serve both identification and verification functions, the controller handles both reading and comparison operations, and the same system infrastructure supports various identification protocols. This universal design approach maximizes throughput while minimizing the need for multiple specialized components, thereby controlling system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enhances efficiency and reduces errors by automating the identification and removal of mismatched medical devices, ensuring accurate production line management.
Implementation Method 1
a radio-frequency identification (RFID) reader configured to read, from a plurality of RFID tags on a plurality of medical devices in a production line, a plurality of identifiers associated with the plurality of medical devices
Data Source
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AI summary
A method may include reading, with a radio-frequency identification (RFID) reader, from a plurality of RFID tags on a plurality of medical devices in a production line, a plurality of identifiers associated with the plurality of medical devices, the plurality of medical devices in the production line being individually moved adjacent to an antenna of the RFID reader by a conveyor. For each identifier of the plurality of identifiers, at least one processor may determine whether that identifier is included in a list of expected identifiers, and in response to determining that that identifier is not included in the list of expected identifiers, control the conveyor to remove a medical device of the plurality of medical devices associated with that identifier from the production line.